Which of the following interpretations for the given expression is correct? A. the cube of the difference of 5 times the square of y and 7 divided by the square of 2 times y B. the difference of the cube of 5 times the square of y and 7 divided by 2 times the square of y C. the cube of the difference of the square of 5 times y and 7 divided by the square of 2 times y D. the cube of the difference of 5 times the square of y and 7 divided by 2 times the square of y

In the following diagram it is given that dec,ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2